STOCKTON — Those who knew Chris Combs painted a picture of a polite and respectable young man, gifted with a “breathtaking” singing voice.Throughout his four years singing on the jazz choir at Chavez High School, his deep bass voice was described as melodious and beautifully powerful.“It was just indescribable — I never heard a young person sing like that,” choir volunteer Patricia Clark said.Tall, lanky and with the sly [...]